Fishway.



J. R. BURKHOLDER.

FISHWAY.

APPLICATION FILED MAR.29, 1912.

1 04 9 4 Patented Dec. 10, 1912.

2 SHEETSSHEET 1.

WITNESSES D i a s 3 [NVEVTOR Q/ZIZEBW Q M w w A. (:22329 J. R. BURKHOLDER.

FISHWAY.

APPLICATION FILED MAR.29,J1912.

Patented Dec. 10, 1912.

2 SHEETSSHEET 2.

fiN 1 UNITED STATES PATENT oFFIoE.

JoHN'R. BURKHOLDER; or LANCASTER, PENNSYLVANIA.

F-ISHWAY. 1

' Application filed March 29,1312. Serial No. 687,219.

To all whom it may concern: I

Be it known that I, JOHN R. BURK-v HOLDER, a citizen of the United States, residing at. Lancaster, in the county of Lancaster and State of Pennsylvania," have invented certain new and useful Improvements in Fishways; and I do hereby declare the following to be a full, c1ear, and exa'ct description of the invention, such as will enable others skilled in the art to which it" panying drawing and then specifically defined in the appended claims.

I illustrate my invention in the accom panying drawings, in which Figure 1 isa top plan view of my apparatus applied to a water way. Fig. 2 is a vertical sectional view through the way,

parts being shown in elevation. Fig. 3 1s an enlarged detail in elevation of an adjustable float-operated gate, and Fig. 4. is a sectional view on line 41 of Fig. 3. I

Reference now being had to the details of the drawings by numeral, 1 designates a dam over which water falls and 2 is a water way communicating between the lower level below the dam and the level of the water above the dam. Said way, as shown in Fig. 2 of the drawings, is at an inclination and provided with a series of rifiles 3 spaced apart and its lower port-ion has a laterally extending exit end 4 through which water passing down over the riflles commingles with the water below the dam. A flange 5 is formed along oneedge of the laterally extending exit end and adapted to deflect the water in its proper course, as shown in Fig. 1 of the drawings.

The upper portion of the way extends laterally formin an inlet passage 6 which is controlled by t e gate 7, a detail of which is illustrated in Fig. 3 of the drawings. Said gate is provided with a series of recesses 8 upon'its upper edge andis held in ings, and to the letters and figures oflref adjusted positions by means of the threaded bolts 9, each of'which has a head 10 which are swiveled in openings in the gate, the threaded portions of the bolts passing through threaded apertures in the bracket 'arms 11 which are fastened to a board 12.

The gate is adapted to be held between gu1des,'20 in the opposite 'walls at the entranceto the'way, the water being caused to flow either over the top or through the recesses 6. Angled bracket members 13 are fastened to the under surface of said board and are guided between the flanged cleats 14 which are fastened to the face of the gate. Floats, designated by numeral 15, which in the present instance are shown as spherical-shaped, have bars 16 fastened thereto and which inturn are secured to the board 12. The upper end-16 of each bolt issquared inorder to allow a wrench to be applied thereto for the purpose of turning the bolts in one direction or the other for the purpose of adjusting the gate to beheld .at different elevations relative to the surface of the water.

The operationof my invention will be' readily understood and is as follows :The parts being adjusted as shown, the floats will hold the gate in diflerent positions. Inthe event of'it being desired to hold the gate at a higher elevation than shown in Fig.3 of the drawings, the operator by turning the bolts may cause the upper edge of the gate to be elevated to a plane above Specification of: Letters Patent. Patented-Dec. 10, 1912.

the surface of thewater, thus allowing all j of the water which enters the inclined way to pass through the recesses 8. In the adjustment shown in.-Fig..3, the upper edge of the gate being below the surface of the water, which latter is designated by numeral 17, the water will flow over the top of the gate as the surface of the water rises and lowers, the floats causing the gate to rise and lower accordingly.

By the provision of the apparatus shown, it will be noted that a convenient means is afforded whereby fish may pass up the rifiled way and through the recesses in the gates or over the top thereof in the event of the gate being lowered below the surface of the water. I

What I claim to be new is 1. A fish way comprising an inc-line riffied chute adapted to communicate at its ends with a stream of water at different inclinations, and a float-actuated gate controlling the entrance to the way and provided with recesses in the upper edge thereof, as

ing recesses in the upperedge, .bolts'having swiveled connection with the gate, a float, bracket' arms, fixed thereto. and having threaded openings for the-reception of the threaded bolts, as set forth.

a A, fish-way comprlsmg an: inclined riflied chute adapted to'communicate at its ends with a stream of water at different in- 15 clinations, a vertically adjustable gate having recesses in the upper edge, bolts having swiveled connection with the gate, a board, bracket arms fixed thereto and having threaded openings for the reception of threaded bolts, arms fixed to said board, and floats secured to said arms, as set forth. In testimony whereof I hereunto afiix my signature in the presence of two witnesses. JOHN R. BURKHOLDER. Witnesses:

PAUL R. BYERLY, HARRY L. HERB. 

